A case study of the phonological development of my son has been undertaken, using data collected during a 13-month period of continuous monitoring from the age of 18 to 31 months. The results are presented in seven stages. Analysis of the data reveals the order in which English consonant phonemes have acquired and their use in various phonotactic contexts, across word boundaries, and in conjunction with different vowels. Further analysis demonstrates the patterns of use of emerging consonants in the mispronunciation of words which contain consonants and consonant clusters that were beyond Richard's articulatory control at any given stage. Throughout, attempts to provide comparisons with the findings of previous studies on early phonological developments are made.
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